Hornady's traditional rifle bullets are built with a rugged amp bullet jacket (advanced manufacturing process) that clearly delivers better performance.The thin-plated full metal jacket is easily distorted and often breaks or separates when the bullet impacts the target.The amp bullet jacket features virtually zero tolerance for concentrically and near-zero wall thickness variation, punching through targets without deforming or breaking.Coefficient: .243Bullet Type: Full Metal Jacket Boat TailBullet Diameter: .224Weight: 55 grBullet Caliber: 22 CaliberJacket Material: CopperCore Material: LeadSectional Density: .157Quantity: 100 Per Box